Bill Ackman

Hedge fund manager Bill Ackman has called Herbalife a pyramid scheme in which most independent distributors lose money, while a lucky few who got in early get rich by getting commissions from others they brought into the business. He's bet $1 billion that Herbalife shares will fall. The company...

Hedge fund manager Bill Ackman has called Herbalife a pyramid scheme in which most independent distributors lose money, while a lucky few who got in early get rich by getting commissions from others they brought into the business. He's bet $1 billion that Herbalife shares will fall. The company... (Scott Eells / Bloomberg)

Hedge fund manager Bill Ackman has called Herbalife a pyramid scheme in which most independent distributors lose money, while a lucky few who got in early get rich by getting commissions from others they brought into the business. He's bet $1 billion that Herbalife shares will fall. The company...